/*   
 *  Copyright 1999-2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package examples;

import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyTag;

/**
 * Example1: the simplest tag
 * Collect attributes and call into some actions
 *
 * <foo att1="..." att2="...." att3="...." />
 */

public class FooTag 
    extends ExampleTagBase 
    implements BodyTag 
{
    private String atts[] = new String[3];
    int i = 0;
    
    public void resetCustomAttributes() {}
    private final void setAtt(int index, String value) {
        atts[index] = value;
    }
    
    public void setAtt1(String value) {
        setAtt(0, value);
    }
    
    public void setAtt2(String value) {
        setAtt(1, value);
    }

    public void setAtt3(String value) {
        setAtt(2, value);
    }
    
    /**
     * Process start tag
     *
     * @return EVAL_BODY_INCLUDE
     */
    public int doStartTag() throws JspException {
	return EVAL_BODY_TAG;
    }

    public void doInitBody() throws JspException {
        pageContext.setAttribute("member", atts[i]);
        i++;
    }
    
    public int doAfterBody() throws JspException {
        try {
            if (i == 3) {
                bodyOut.writeOut(bodyOut.getEnclosingWriter());
                return SKIP_BODY;
            } else
                pageContext.setAttribute("member", atts[i]);
            i++;
            return EVAL_BODY_TAG;
        } catch (IOException ex) {
            throw new JspTagException(ex.toString());
        }
    }
}

